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onsemi MC74ACT132NG
- Part No.:
- MC74ACT132NG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MC74ACT132NG.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,936
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Product details
Overview
MC74ACT132NG from onsemi is a quad 2-input NAND Schmitt trigger IC designed for noise-immune signal conditioning in digital logic interfaces. It features TTL-compatible inputs, 24 mA output drive capability, hysteresis of 1.2 V (min) at 5.5 V, propagation delay of 11.5 ns (typ) at 5 V, and operates across −40°C to +85°C. It is used in debouncing mechanical switches and cleaning slow-rising clock or control signals in industrial control panels.
For engineers reviewing the MC74ACT132NG datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, SOIC-14 pin mapping, real-world use cases, and two validated alternative parts - all aligned with onsemi's official 2024 Rev. 9 datasheet.
Technical Context
The MC74ACT132NG implements four independent 2-input NAND gates, each integrated with a Schmitt-trigger input stage that provides input hysteresis to reject noise on slow-transitioning signals. Its TTL-compatible input thresholds (Vt+ = 2.0 V, Vt− = 0.8 V at VCC = 5.5 V) enable direct interfacing with legacy 5 V TTL logic families without level shifting.
Each gate delivers rail-to-rail CMOS output swing with ±24 mA drive strength, supporting fan-out to multiple 74ACT/74LS loads. The device uses high-performance silicon-gate CMOS technology, ensuring low ICC (≤40 µA) and ESD robustness (>2000 V HBM), while maintaining stable hysteresis across temperature and supply voltage variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74ACT - TTL-compatible CMOS with 4.5–5.5 V operation |
| Input Hysteresis (Vh min) | 0.4 V at 4.5 V - ensures ≥400 mV noise margin on slow edges |
| Propagation Delay (tPLH/tPHL) | 11.5 / 11.0 ns (typ) at 5 V - supports ≤40 MHz toggle rate in clean logic paths |
| Output Drive (IOL/IOH) | 24 / −24 mA - drives 10+ 74ACT inputs or 2x 74LS loads per output |
| Supply Voltage Range | 4.5–5.5 V - compatible with regulated 5 V systems; excludes 3.3 V operation |
| Operating Temperature | −40°C to +85°C - qualified for industrial ambient environments |
| ESD Rating (HBM) | >2000 V - withstands typical handling and board-level ESD events |
Pinout & Package
MC74ACT132NG is housed in a Pb-free SOIC-14 (Case 751A) package, 8.75 mm × 3.9 mm × 1.75 mm body, with 1.27 mm pitch gull-wing leads. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6, 8, 9, 12, 13 | Input A/B of NAND gates | Four independent Schmitt-triggered NAND inputs (A1/B1, A2/B2, A3/B3, A4/B4) |
| 3, 4, 10, 11 | Output Y of NAND gates | Active-low NAND outputs with full CMOS swing and 24 mA sink/source |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry |
| 14 | VCC | Positive supply terminal - must be decoupled locally with 0.1 µF ceramic capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Provides 1.2 V hysteresis (min) at 5.5 V to eliminate chatter on noisy or slow-switching signals |
| TTL-compatible inputs | Accepts standard 5 V TTL logic levels (VIH ≥ 2.0 V, VIL ≤ 0.8 V), enabling direct replacement of 74LS132 |
| 24 mA output drive | Supports high-fanout designs without external buffers - sufficient for driving LEDs or small logic loads directly |
| Pb-free SOIC-14 package | RoHS-compliant, JEDEC-standard footprint compatible with automated SMT assembly and reflow profiles |
| Industrial temperature range | Guaranteed operation from −40°C to +85°C - suitable for non-automotive industrial control and instrumentation |
Applications
| Switch Debouncing | Waveform Shaping |
|---|---|
|
Use Scenario: Mechanical pushbuttons or rotary encoders generate contact bounce lasting 1–10 ms, causing false triggers in microcontroller GPIO or counter circuits. IC Role / Device Role: MC74ACT132NG acts as a hardware debouncer - its Schmitt-trigger inputs convert noisy bounce into clean, monotonic transitions before reaching downstream logic. Use Value: Eliminates need for software debounce delays or RC + comparator circuits; reduces MCU interrupt load and improves real-time response. |
Use Scenario: Analog sensor outputs (e.g., thermistor-based comparators) or crystal oscillator waveforms exhibit slow rise/fall times and amplitude instability. IC Role / Device Role: MC74ACT132NG reshapes these analog-derived signals into fast, jitter-free square waves suitable for clocking or digital sampling. Use Value: Enables reliable edge detection and timing-critical sampling without added op-amp or comparator stages. |
| Noise-Immune Control Signal Conditioning | Legacy TTL Interface Level Translation |
|
Use Scenario: Long PCB traces or unshielded wiring in factory automation carry 5 V control signals susceptible to EMI-induced glitches. IC Role / Device Role: MC74ACT132NG serves as a noise-filtering gate - its hysteresis rejects sub-threshold transients while preserving valid logic transitions. Use Value: Prevents spurious actuation of relays, solenoids, or PLC inputs caused by electromagnetic interference. |
Use Scenario: Integrating modern 74ACT logic into legacy systems using 74LS or 74F families requires compatible input thresholds and drive strength. IC Role / Device Role: MC74ACT132NG replaces obsolete 74LS132 with identical pinout and TTL-compatible inputs, while delivering higher output current and lower power. Use Value: Enables drop-in upgrade path without redesigning PCB layout or recalculating fan-out margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT132DR | Same logic function, pinout, and AC/DC specs; manufactured by Texas Instruments; identical 4.5–5.5 V operation and 24 mA drive | No functional difference - fully interchangeable in new designs and second-source procurement | Select when TI-sourced components are required for supply chain diversification or qualification continuity |
| MC74HC132ADR2G | CMOS-input variant (not TTL-compatible); wider VCC range (2–6 V); lower drive (±4 mA); slower propagation (25 ns typ at 4.5 V) | Not suitable for direct 74LS interface; requires level-shifting if driven by TTL; limited to low-speed or battery-powered applications | Choose only for 3.3 V system integration or ultra-low-power contexts where TTL compatibility is unnecessary |
Compared with SN74ACT132DR, MC74ACT132NG offers identical performance but different supply-chain origin; versus MC74HC132ADR2G, it delivers superior noise immunity, faster timing, and guaranteed TTL interoperability - making it the preferred choice for industrial 5 V logic conditioning.
Availability
MC74ACT132NG is available at Aetrix Electronics and suitable for industrial control panels, factory automation I/O modules, and embedded instrumentation requiring stable component supply over extended production lifecycles.
Supply support for MC74ACT132NG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC74ACT132NG belongs to onsemi's 74ACT logic family - engineered for high-speed, noise-tolerant 5 V digital interfacing in harsh industrial environments where reliability and signal integrity are critical.
FAQ
What is the supply voltage range for MC74ACT132NG?
The MC74ACT132NG operates strictly within 4.5 V to 5.5 V. It is not rated for 3.3 V operation, and applying voltages outside this range may damage the device or cause undefined behavior. This range ensures TTL-compatible input thresholds and full 24 mA output drive capability, as confirmed in the onsemi datasheet Rev. 9, Section "Recommended Operating Conditions".
Is MC74ACT132NG pin-compatible with the older 74LS132?
Yes, MC74ACT132NG is pin-compatible with 74LS132 and shares the same SOIC-14 footprint and pin assignments. Its TTL-compatible inputs (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and identical logic function allow direct replacement in legacy designs without PCB changes, as documented in the onsemi datasheet functional table and pinout diagram.
Does MC74ACT132NG support 3.3 V input signals?
No - MC74ACT132NG does not reliably recognize 3.3 V as a valid HIGH input. Its minimum VIH is 2.0 V at VCC = 5.5 V, but 3.3 V signals fall below the guaranteed switching threshold under worst-case conditions. For mixed-voltage systems, level translation is required before connecting 3.3 V sources to MC74ACT132NG inputs.
What is the typical propagation delay of MC74ACT132NG at 5 V?
The typical propagation delay of MC74ACT132NG is 11.5 ns (tPLH) and 11.0 ns (tPHL) at VCC = 5.0 V, CL = 50 pF, and TA = +25°C, as specified in the "AC Characteristics" table of the onsemi datasheet Rev. 9. This enables reliable operation up to approximately 40 MHz in non-critical timing paths.
Can MC74ACT132NG drive an LED directly?
Yes - MC74ACT132NG can drive a standard 2 mA LED directly when configured in open-drain-like mode (e.g., output LOW to sink current). With 24 mA sink capability and VOL ≤ 0.44 V at IOL = 24 mA, it supports common-anode LED indicators with appropriate series resistance, as verified in the "DC Characteristics" section for 74ACT devices.
MC74ACT132NG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ACT
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 4 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 11.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MC74ACT132NG FAQ
1.How can I place an order for MC74ACT132NG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74ACT132NG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC74ACT132NG reliable?
The price and inventory of MC74ACT132NG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74ACT132NG is usually 5 days.
3.What payment methods are accepted for MC74ACT132NG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74ACT132NG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74ACT132NG?
MC74ACT132NG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74ACT132NG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC74ACT132NG?
For technical support, including MC74ACT132NG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74ACT132NG requirements.
6.How does Aetrix verify that MC74ACT132NG is sourced from the original manufacturer or authorized distributors?
All MC74ACT132NG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC74ACT132NG meets industry standards.
7.What is the process for return or replacement of MC74ACT132NG?
All MC74ACT132NG units undergo pre-shipment inspection (PSI). If there is an issue with MC74ACT132NG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC74ACT132NG part is unused and in its original packaging.
Return procedure for MC74ACT132NG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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